G
G146
www.sti.com/info
Safety Interlock Switches
D4NS D4NS
Safety-Door Switch
• Multi-contact,labor-saving,environment-friendly,next-generation
safety-doorswitch
• Lineupincludesthreecontactmodelswith2NC/1NOand3NC
contactformsandMBBmodelsinadditiontothepreviouscontact
forms1NC/1NO,and2NC
• M12-connectormodelsareavailable,savingonlaborandsimplify-
ingreplacement.
• Standardizedgold-cladcontactsprovidehighcontactreliability.
Applicabletobothstandardloadsandmicroloads.
• Varietyofmetallicheadsavailable
S
Standards and EC Directives
Conforms to the following EC Directives:
• MachineryDirective
• LowVoltageDirective
• EN50047
• EN1088
• EN60204-1
• GS-ET-15
Certified Standards
Certification
body Standard File No.
TÜVSÜD EN60947-5-1
(certieddirectopening)
Consultyour
representativefor
details.
UL*1 UL508,CSAC22.2No.14 E76675
CQC(CCC) GB14048.5 2003010305077330
KOSHA*2 EN60947-5-1 2005-197
*1.CerticationforCSAC22.2No.14isauthorizedbytheULmark.
*2.Onlycertainmodelshavebeencertied.
Specifications
Certified Standard Ratings
TÜV (EN 60947-5-1), CCC (GB14048.5)
Item Utilization category AC-15 DC-13
Ratedoperatingcurrent(Ie) 3A 0.27A
Ratedoperatingvoltage(Ue) 240V 250V
Note:Usea10AfusetypegIorgGthatconformstoIEC60269asashort-
circuitprotectiondevice.ThisfuseisnotbuiltintotheSwitch.
UL/CSA (UL 508, CSA C22.2 No. 14)
A300
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
120VAC 10A 60 67,200 720
240VAC 30 3
Q300
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
125VDC 2.5A 0.55 0.55 69 69
250VDC 0.27 0.27
For full product information, visit www.sti.com. Use the SpeedSpec Code or scan the QR Code for quick access to the specific web page.
G
G147
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Characteristics
Degreeofprotection*1 IP67(EN60947-5-1)
Durability*2
Mechanical 1,000,000operationsmin.
Electrical 500,000operationsmin.(3Aresistiveloadat250VAC)*3
300,000operationsmin.(10Aresistiveloadat250VAC)
Operatingspeed 0.05to0.5m/s
Operatingfrequency 30operations/minutemax.
Directopeningforce*4 60Nmin.
Directopeningtravel*4 10mmmin.
Contactresistance 25mΩmax.
Minimumapplicableload*5 1mAresistiveloadat5VDC(N-levelreferencevalue)
Ratedinsulationvoltage(Ui) 300V
Ratedfrequency 50/60Hz
Protectionagainstelectricshock
ClassII(doubleinsulation)
Pollutiondegree(operatingenvironment) 3(EN60947-5-1)
Impulse
withstandvoltage
(EN60947-5-1)
Betweenterminalsof
samepolarity 2.5kV
Betweenterminalsof
differentpolarity 4kV
Betweeneach
terminasand
non-currentcarrying
metallicparts.
6kV
Insulationresistance 100MΩmin.
Contactgap 2x2mmmin.
Vibrationresistance 10to55Hz,0.75mmsingleamplitude
Shockresistance Destruction 1,000m/s2min.
Malfunction 300m/s2min.
Conditionalshort-circuitcurrent 100A(EN60947-5-1)
Conventionalfreeairthermalcurrent(Ith) 10A(EN60947-5-1)
Ambientoperatingtemperature -30to+70°C(withnoicing)
Ambientoperatinghumidity 95%max.
Weight Approx.96g(D4NS-1CF)
Specifications (continued)
Notes:Theabovevaluesareinitialvalues.
TheSwitchcontactscanbeusedwitheitherstandardloadsormicroloads.Oncethecontactshavebeenusedto
switchaload,however,theycannotbeusedtoswitchsmallerloads.Thecontactsurfaceswillbecomeroughonce
theyhavebeenusedandcontactreliabilityforsmallerloadsmaybereduced.
*1.Thedegreeofprotectionistestedusingthemethodspeciedbythestandard(EN60947-5-1).Conrmthat
sealingpropertiesaresufcientfortheoperatingconditionsandenvironmentbeforehand.Althoughtheswitch
boxisprotectedfromdustorwaterpenetration,donotusetheD4NSinplaceswhereforeignmaterialmayenter
throughthekeyholeonthehead,otherwiseSwitchdamageormalfunctioningmayoccur.
*2.Thedurabilityisforanambienttemperatureof5to35°Candanambienthumidityof40%to70%.Forfurther
conditions,consultyoursalesrepresentative.
*3.Donotpassa3A,250VACloadthroughmorethantwocircuits.
*4.Theseguresareminimumrequirementsforsafeoperation.
*5.Thisvaluewillvarywiththeswitchingfrequency,environment,andreliabilitylevel.Conrmthatcorrectoperation
ispossiblewiththeactualloadbeforehand.
D4NS Safety Interlock Switches
G
G148
www.sti.com/info
D4NS Safety Interlock Switches
Contact Form
Diagramsshowstatewithkeyinserted.
Model Contact Contact form Operating pattern Remarks
D4NS-□A□1NC/1NO
D4NS-□B□2NC
D4NS-□C□2NC/1NO
D4NS-□D□3NC
D4NS-□E□1NC/1NOMBB*
D4NS-□F□2NC/1NOMBB*
*MBB(MakeBeforeBreak)contactshaveanoverlappingstructure,sothatbeforethenormallyclosedcontact(NC)opens,thenormallyopencontact
(NO)closes.
Connections
11
Zb
33
12
34
11
31
12
32
Zb
33 34
11
21
12
22
Zb
11
21
12
22
31 32
Zb
11
33
12
34
Zb
33 34
11
21
12
22
Zb
11-12
33-34 ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
11-12
31-32 ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
21-22
33-34
11-12
ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
11-12
21-22
31-32
ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
11-12
33-34 ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
11-12
21-22
33-34
ON
Extraction
completion
position
Operation
Key insertion
completion
position
Stroke
Only NC contacts 11-12 have a
certified direct opening
mechanism.
The terminals 11-12 and 33-34
can be used as unlike poles.
NC contacts 11-12 and 31-32
ha
ve a certified direct
opening mechanism.
The terminals 11-12 and 31-32
can be used as unlik
e poles.
NC contacts 11-12 and 21-22
have a certified direct
opening mechanism.
The terminals 11-12, 21-22, and
33-34 can be used as unlike
poles.
NC contacts 11-12, 21-22, and
31-32 have a certified direct
opening mechanism.
The terminals 11-12, 21-22, and
31-32 can be used as unlike
poles.
certified direct opening
mechanism.
The terminals 11-12 and 33-34
NC contacts 11-12 and 21-22
have a certified direct opening
mechanism.
The terminals 11-12, 21-22 and
33-34 can be used as unlike poles.
G
G149
www.sti.com/info
D4NS Safety Interlock Switches
Dimensions and Operating Characteristics (mm)
1-Conduit Models
2-Conduit Models
1-Conduit Connector Models
7.5
Head cap
22±0.2
31
30.2
15.3
4.4
2.5
55
41 33.5
47±0.2
20±0.1
22±0.1
14.2
30
31.5
21.5
15.5
30.6
Red
Black
D4NS-1 F
D4NS-2 F
D4NS-4 F
2.15±0.05R
mounting holes
0
Two, 4+0.15 dia. holes
depth: 5
15 N max.
30 N max.
6±3 mm
(28 mm)
60 N min.
10 mm min.
D4NS-1@F
D4NS-2@F
D4NS-3@F
D4NS-4@F
Operating
characteristics
Key insertion force
Key extraction force
Pretravel (PT)
Total travel (TT)
Direct opening force *
Direct opening stroke *
* Always maintain the above operating character
istics
for safe use.
Model
7.5
15.3
42±0.1
40±0.1
30.2
4.4
5.4
47
33.5
39±0.2
41 2.5 9±0.2
25 dia.
14.2
30
20.5
15.5
21.5
Cap
31.5
30.6
56 max. 3
42±0.2
22±0.1
20±0.1
Red
Black
D4NS-6 F
D4NS-8 F
2.15±0.05R
mounting holes 0
Two, 4+0.15 dia. holes
depth: 5
15 N max.
30 N max.
6±3 mm
(28 mm)
60 N min.
10 mm min.
D4NS-5@F
D4NS-6@F
D4NS-7@F
D4NS-8@F
Operating
characteristics
Key insertion force
Key extraction force
Pretravel (PT)
Total travel (TT)
Direct opening force *
Direct opening stroke *
* Always maintain the above operating characteristics
for safe use.
H
ea
d
cap
Model
31
M12 × 1
30
22±0.2
2.5
20±0.1
22±0.1
30.2
15.3
4.4
55
(14)
41 33.5
47±0.2
7.5
31.5
21.5
15.5
30.6
14.2
Red
Black
D4NS-9@F
2.15±0.05R
mounting holes
0
Two, 4+0.15 dia. holes
depth: 5
15 N max.
30 N max.
6±3 mm
(28 mm)
60 N min.
10 mm min.
D4NS-9@F
Operating
characteristics
Key insertion force
Key extraction force
Pretravel (PT)
To tal travel (TT)
Direct opening force *
Direct opening stroke *
* Always maintain the above operating characteristics
for safe use.
Head cap
Model
Notes:
1. Unlessotherwisespecied,atoleranceof±0.4mmappliestoalldimensions.
2. ThereareuctuationsinthecontactON/OFFtimingforSwitcheswithmultiplepoles(2NC,2NC/1NO,or3NC).Conrmperformancebeforeapplication.
G
G150
www.sti.com/info
D4NS Safety Interlock Switches
Dimensions and Operating Characteristics (continued) (mm)
With Operation Key Inserted (Relationship between Insertion Radius and Key Hole)
(30.6)
(30.6)
(15)
(33.5)
Red
Black
D4NS-1@
F + D4DS-K1
(with Fr
ont-inserted Operation Key)
44 to 46.5
Key insertion face
Horizontal key
insertion radius
R ≥ 200
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
44 to 46.5
Key insertion face
Vertical key
insertion radius
R ≥ 200
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
(30.6)
(15)
(30.6)
(33.5)
(27.5)
Red
Black
D4NS-1@F + D4DS-K2
(with Fr
ont-inserted Operation Key)
40 to 42.5
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
40 to 42.5
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
Horizontal key
insertion radius
R ≥ 200
Vertical key
insertion radius
R ≥ 200
Red
Black
The permissible differenc
e
in center lines between
the Operation Key
and key hole is ±1.
Horizontal key insertion
radius R ≥ 200
Vertical key insertion
radius R ≥ 200
54.5 to 57.0 Key
insertion face
54.5 to 57.0 Key
insertion face
D4NS-1@
F + D4DS-K1
(with
Top-inserted Operation Key)
The permissible difference
in center lines between
the Operation Key
and key hole is ±1.
(41)
(8)
(41)
(15)
Red
Black
The permissible differenc
e
in center lines between
the Operation Key
and key hole is ±1.
Horizontal key insertion
radius R ≥ 200
Vertical key insertion
radius R ≥ 200
50.5 to 53.0 Key
insertion face
50.5 to 53.0 Key
insertion face
D4NS-1@F + D4DS-K2
(with
Top-inserted Operation Key)
The permissible difference
in center lines between
the Operation Key
and key hole is ±1.
(41)
(8)
(6)
(41)
(15)
Note:Unlessotherwisespecied,atoleranceof±0.4mmappliestoalldimensions.
G
G151
www.sti.com/info
D4NS Safety Interlock Switches
(40±0.15)
(30.6)
(30.6)
(33.5)
Red
Black
D4NS-1
@
F + D4DS-K3
(with Front-inserted Operation Key)
45 to 47.5
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
45 to 47.5
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
Horizontal key
insertion radius
R ≥ 50
Vertical key
insertion radius
R ≥ 200
Red
Black
The permissible difference
in center lines between
the Operation Key
and key hole is ±1.
Horizontal key insertion
radius R ≥ 50
Horizontal key insertion
radius R ≥ 200
55.5 to 58.0 Key
insertion face
55.5 to 58.0 Key
insertion face
D4NS-1@
F + D4DS-K3
(with
Top-inserted Operation Key)
The permissible differenc
e
in center lines between
the Operation Key
and key hole is ±1.
(41)
(8)
(41)
40
(30.6)
(30.6)
(33.5)
(43±0.1)
(41±0.1)
Red
Black
D4NS-1@F + D4DS-K5
(with Front-inserted Operation Key)
51.9 to 54.4
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
51.9 to 54.4
Key insertion face
Permissible difference
in center lines between
the Operation Key and
key hole is ±1.
Horizontal key
insertion radius
R ≥ 50
Vertical key
insertion radius
R ≥ 50
Red
Black
The permissible difference
in center lines between
the Operation Key
and key hole is ±1.
Horizontal key inser
tion
radius R ≥ 50
Horizontal key insertion
radius R ≥ 50
62.4 to 64.9 Key
insertion face
62.4 to 64.9 Key
insertion face
D4NS-1@F + D4DS-K5
(with Top-inserted Operation Key)
The permissible difference
in center lines between
the Operation Key
and key hole is ±1.
(41)
(8)
(41)
43 ± 0.1
41 ± 0.1
Dimensions and Operating Characteristics (continued) (mm)
G
G152
www.sti.com/info
Adjustable mounting
(Horizontal/Vertical)
D4NS Safety Interlock Switches
30 15
7
17.528
4.3
13
2
13
7
D4DS-K1
Four, 2.15R
3
30 13 15
24.7
28
10.5
67
9
D4DS-K2
Four, 2.15
R
2814
4
6.3
2
15
4030 56
20°
13
9 dia.
4.5 dia.
8 dia.
Angle adjustment bolt
Black
D4DS-K3
D4DS-K5
Black
4
20.9 28
24.6
22.5
43 41 5530
8
1
(7)6.5
13
15°
18°
43
4.5
41
Mounting Holes
(Enlargement)
8
17
15
Operation Keys
Dimensions and Operating Characteristics (continued) (mm)
Switch
D4NS–□□□ – □
1 2 3 4
1 ConduitSize
1: Pg13.5(1-conduit)
2: G1/2(1-conduit)
4: M20(1-conduit)
6: G1/2(2-conduit)
8: M20(2-conduit)
9: M12connector(1-conduit)
(only4-pinisavailable)
2 Built-inSwitch(withDoorOpen/Closed
DetectionSwitchandLockMonitor
SwitchContacts)
A: 1NC/1NO(slow-action)
B: 2NC(slow-action)
C: 2NC/1NO(slow-action)
D: 3NC(slow-action)
E: 1NC/1NO(MBBcontact)
F: 2NC/1NO(MBBcontact)
Operation Key
D4DS-K□
1
1 OperationKeyType
1: Horizontalmounting
2: Verticalmounting
3: Adjustablemounting(horizontal)
5: Adjustablemounting(horizontal/
vertical)
Model Number Structure
Type Model
Horizonalmounting
D4DS-K1
Verticalmounting
D4DS-K2
Adustablemounting
(horizontal)
D4DS-K3
Adjustablemounting
(horizontal/vertical)
D4DS-K5
Horizontal mounting
Vertical mounting
Adjustable mounting
(Horizontal)
Ordering
For information on the D4NS-SK Slide Key,
see page G184.
✎
M20-NPT Adapter
3 HeadMountingDirection
F: Fourmountingdirectionspossible
(Front-sidemountingatshipping)/
plastic
D: Fourmountingdirectionspossible
(Front-sidemountingatshipping)/
metal
4 M20-to-NPTAdapter
Blank:Adapterisnotincluded
NPT: Adapterisincluded*
Note:Anorderfortheheadpartorthe
switchpartalonecannotbeaccepted.
(Theoperationkeyissoldseparately.)
*Notavailablewith2-conduitmodels.
G
G153
www.sti.com/info
D4NS Safety Interlock Switches
Ordering (continued)
List of Models
Switches with certified direct opening mechanisms (Operation Keys are sold separately)
Type Contact configuration Conduit opening/Connector Model
1-Conduit
Slow-action
1NC/1NO
Pg13.5 D4NS-1AF*
G1/2 D4NS-2AF*
NPT D4NS-4AF-NPT
M20 D4NS-4AF
2NC
Pg13.5 D4NS-1BF*
G1/2 D4NS-2BF*
NPT D4NS-4BF-NPT
M20 D4NS-4BF
2NC/1NO
Pg13.5 D4NS-1CF*
G1/2 D4NS-2CF*
NPT D4NS-4CF-NPT
M20 D4NS-4CF
3NC
Pg13.5 D4NS-1DF*
G1/2 D4NS-2DF*
NPT D4NS-4DF-NPT
M20 D4NS-4DF
Slow-actionMBBcontact
1NC/1NO
Pg13.5 D4NS-1EF
G1/2 D4NS-2EF
NPT D4NS-4EF-NPT
M20 D4NS-4EF
2NC/1NO
Pg13.5 D4NS-1FF
G1/2 D4NS-2FF
NPT D4NS-4FF-NPT
M20 D4NS-4FF
2-Conduit
Slow-action
1NC/1NO
Pg13.5 D4NS-5AF
G1/2 D4NS-6AF
M20 D4NS-8AF
2NC
Pg13.5 D4NS-5BF
G1/2 D4NS-6BF
M20 D4NS-8BF
2NC/1NO G1/2 D4NS-6CF
M20 D4NS-8CF
3NC G1/2 D4NS-6DF
M20 D4NS-8DF
Slow-actionMBBcontact
1NC/1NO G1/2 D4NS-6EF
M20 D4NS-8EF
2NC/1NO G1/2 D4NS-6FF
M20 D4NS-8FF
1-Conduit,with
connector
Slow-action 1NC/1NO
M12connector
D4NS-9AF
2NC D4NS-9BF
Slow-actionMBBcontact 1NC/1NO D4NS-9EF
1. Therecommendedmodelsforequipmentandmachinerybeingexportedto
EuropearethosewithanM20orPg13.5conduitsizes,andforNorthAmerica,
therecommendedmodelsarethosewithaNPTconduitsizes.
2. ResinisusedasthematerialfortheD4NShousingandhead.Usethemetal
D4BSSafety-doorSwitchforapplicationsrequiringgreatermechanicalstrength.
*ModelswithKoreanS-markcertication.